A few State links:
US Census information on states
http://quickfacts.census.gov/qfd/index.html
A repository of basic information on all 50 states
http://www.50states.com/
Which state joined the Union in what order
http://www.infoplease.com/ipa/A0763770.html
First State of the Union address
http://www.law.ou.edu/hist/washsu.html